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kmod: configure.ac: In _Noreturn check, include <stdlib.h> for exit

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Otherwise, an implicit functiona declaration is used, causing
a C99 compatibility issue.

Signed-off-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
This commit is contained in:
Florian Weimer 2022-12-17 17:52:34 +01:00 committed by Lucas De Marchi
parent 6c5f2f1368
commit 035e6667d1
1 changed files with 2 additions and 1 deletions
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3
configure.ac
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@ -68,7 +68,8 @@ AC_COMPILE_IFELSE(
AC_MSG_CHECKING([whether _Noreturn is supported])
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([[_Noreturn int foo(void) { exit(0); }]])],
[AC_LANG_SOURCE([[#include <stdlib.h>
_Noreturn int foo(void) { exit(0); }]])],
[AC_DEFINE([HAVE_NORETURN], [1], [Define if _Noreturn is available])
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])])